Note préliminaire sur les animaux domestiques des Gbaya : la poule et la chèvre
description ethnozoologique de deux animaux d'élevage dans un village de savane de RCA
Les Gbaya de Centrafrique, étude ethnozoologique
conférence sur l'ethnozoologie d'une ethnie de savane centrafricaine
Metabolism of [1- 14c]palmitic acid in the developing brain:Persistence of radioactivity in the carboxyl carbon
Published in Biochimica et Biophysica Acta (BBA)/Lipids and Lipid Metabolism
[1- 14C]Palmitic acid was injected intraperitoneally into young rats (12–13 daysold) to study the label distribution over an extended period of 2 months during whichtime rapid growth and active myelination occurs. It was found that, 24 h after injection,brain palmitate still had 78% relative carboxyl activity. It was also noted thatlabel persisted ...
Properties of liver mitochondria from iron-loaded rats
Published in Biochemical and Biophysical Research Communications
The increased iron content in livers from iron-loaded rats is almost exclusively confined to the mitochondria. The ten- to twenty-fold higher level of nonheme iron in such mitochondria decreases the respiratory control with pyruvate-malate, but not with 3-hydroxybutyrate or succinate as substrates, and has no effect on the capacity for phosphorylat...
Critical density for protein-protein monoconjugation on a polysaccharide matrix
Published in BBA - Protein Structure
The galactose binding toxin (RCA II) from Ricinus communis was affinity-immobilised at varying densities on a polysaccharide matrix and reacted with glutaraldehyde. The critical density below which inter-molecular cross-links were not formed was determined. At this density RCA II was monoconjugated to lysozyme. This approach could serve as a protot...
Transient hyperglycosylation of rhodopsin with galactose.
Published in Experimental eye research
Rhodopsin's oligosaccharide chains contain predominantly two types of sugar residues: mannose and N-acetylglucosamine. In the present work, bovine and rat rhodopsin were analysed biochemically for the presence of a third sugar, galactose. Treatment of bovine rod outer segments (ROS) with galactose oxidase followed by reduction with tritium-labeled ...
Induced hydrocephalus in postnatal rats following an intracerebral injection of ricin
Journal fur Hirnforschung / 34 / 4 / 493-501 / JOHIA
Mechanism of complement-dependent haemolysis via the lectin pathway: role of the complement regulatory proteins.
Published in Clinical and experimental immunology
Mannan-binding lectin (MBL) is an acute phase protein which activates the classical complement pathway at the level of C4 and C2 via two novel serine proteases homologous to C1r and C1s. We recently reported that haemolysis via this lectin pathway requires alternative pathway amplification. The present experiments sought to establish the basis for ...
La tarière à ignames des Pygmées de l'ouest du bassin congolais
Ce chapitre décrit la fabrication et l'usage de deux outils utilisés par les Pygmées d'Afrique centrale pour récolter les ignames sauvages, le bâton à fouir et la tarière à igname. Ces outils sont replacés dans le contexte des savoirs ethnobotanique locaux sur ces plantes.
Utilisation des minéraux lourds comme indicateurs de paléoplacers alluvionnaires diamantifères en République centrafrica...
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